Interesting, lots of promise!  Maybe check out Game Endeavor on youtube, he has some good videos on making the Camera2D work a bit better so you're able to see what's coming ahead of you.

Good atmosphere and the use of the assets. Too bad it doesn't have a more challenging goal and more visual effects (though the bullets were cool!). It is also missed that there is no music in the game world and no sound effects for the things that the player kills.

For your first game jam game, this is really nice! There are some issues, like the textures being blurry and the car being so fast that it can outrun the camera, but overall this a nice game!

It delivers what is promised in the title. I found satisfying changing weapons and going through monster really fast. Good game!